Here's mine, but it wasn't accidental. The 'L' of the 100mm f/2.8L Macro IS, shot with the MP-E 65mm.
Im very disappointed in canon. I expect my L's to be perfectly straight! We should all demand refunds
6D, 60D, 17-40L, 70-200L 2.8 IS II, 24-105L, Sigma 35mm 1.4, 40mm Pancake, Helios 44-M4 (55mm f/2), 1.4X Extender III, 430EX II, Yongnuo YN-622 Flash Triggers.
EOS-M, 22mm, EF Adapter.
And Canonet QL-17 GIII Film!